From the given table, the positive sign connote deposit while the negative sign connotes withdrawal.
If the account shows a zero balance after 4 weeks, we will take the sum of all deposits and withdrawals for the first four weeks and equate to zero as shown:
![+120+(-100)+50+p=0](https://tex.z-dn.net/?f=%2B120%2B%28-100%29%2B50%2Bp%3D0)
Open the parenthesis:
![+120-100+50+p=0\\20+50+p=0\\70+p=0](https://tex.z-dn.net/?f=%2B120-100%2B50%2Bp%3D0%5C%5C20%2B50%2Bp%3D0%5C%5C70%2Bp%3D0)
Subtract 70 from both sides
![70+p-70=0-70\\p=-70](https://tex.z-dn.net/?f=70%2Bp-70%3D0-70%5C%5Cp%3D-70)
Hence the value of p if the account shows a zero balance after 4 weeks is -70
Learn more on deposits and withdrawals here: brainly.com/question/11443019
Answer:
8
Step-by-step explanation:
Use substitution: substitute each number from the set in for x, and see if the result from dividing is 45.
4
360/x=45
360/4=90
90 ≠ 45
Therefore, 4 does not make the equation true
8
360/x=45
360/8=45
45=45
Therefore, 8 does make the equation true.
16
360/x=45
360/16=22.5
22.5 ≠ 45
Therefore, 16 does not make the equation true.
So, 8 is the value that makes the equation true
3 time 5 equals 15
2 times 3 equals 6
the equation is 15-6
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There will be 354087.24 mosquitoes on the 19th of May.
<h3>What is an expression?</h3>
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division
.
Using the relation :
y = 180000(1.07)^x
x = Number of days since May 6 ;
y = Number of mosquitoes after x days
x = May 9 May 19 = 10 days
Therefore, a number of mosquitoes inhabiting the city on May 19 will be :
y = 180000(1.07)^10
y = 180000 x 1.96715136
y = 354087.24
y = 354087.24 (nearest whole number).
Therefore there will be 354087.24 mosquitoes on the 19th of May.
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Answer:
D) 22/7
Step-by-step explanation:
22/7 = 3.14